windows-nt/Source/XPSP1/NT/base/fs/hsm/wsb/wsbaccnt.cpp
2020-09-26 16:20:57 +08:00

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/*++
Copyright (c) 1997 Microsoft Corporation
© 1998 Seagate Software, Inc. All rights reserved
Module Name:
WsbAccnt.cpp
Abstract:
This is the implementation of account helper functions.
Author:
Rohde Wakefield [rohde] 10-Apr-1997
Revision History:
--*/
#include "stdafx.h"
#include "lm.h"
HRESULT
WsbGetAccountDomainName(
OLECHAR * szDomainName,
DWORD cSize
)
/*++
Routine Description:
This routine is called to find out what domain the current process's
account belongs to. An array of cSize wide chars is required.
This is recommended to be MAX_COMPUTERNAMELENGTH.
Arguments:
hInst - HINSTANCE of this dll.
ulReason - Context of the attaching/detaching
Return Value:
S_OK - Success
E_* - Problem occured, error passed down.
--*/
{
HRESULT hr = S_OK;
HANDLE hToken = 0;
try {
if( !OpenThreadToken( GetCurrentThread(), TOKEN_QUERY, TRUE, &hToken ) ) {
//
// Ensure failure was because no token existed
//
WsbAffirm( GetLastError() == ERROR_NO_TOKEN, E_FAIL );
//
// attempt to open the process token, since no thread token
// exists
//
WsbAffirmStatus( OpenProcessToken( GetCurrentProcess(), TOKEN_QUERY, &hToken ) );
}
DWORD dw;
BYTE buf[ 512 ];
TOKEN_USER * pTokenUser = (TOKEN_USER*)buf;
WsbAffirmStatus( GetTokenInformation( hToken, TokenUser, buf, 512, &dw ) );
WCHAR szName[ 256 ];
DWORD cName = 256;
DWORD cDomain = cSize;
SID_NAME_USE snu;
WsbAffirmStatus( LookupAccountSid( 0, pTokenUser->User.Sid, szName, &cName, szDomainName, &cDomain, &snu ) );
} WsbCatch( hr );
if( hToken ) {
CloseHandle( hToken );
}
return( hr );
}
HRESULT
WsbGetServiceInfo(
IN GUID guidApp,
OUT OLECHAR ** pszServiceName, OPTIONAL
OUT OLECHAR ** pszAccountName OPTIONAL
)
/*++
Routine Description:
This function retrieves the name of the service, as well as the
account a COM service runs under. The returned strings are
WsbAlloc'd so they must be freed by the caller.
Arguments:
guidApp - app id of the service to get the account of.
pszServiceName - the name of the service.
pszAccountName - the full account name to set on the account.
Return Value:
S_OK - Success
E_* - Problem occured, error passed down.
--*/
{
HRESULT hr = S_OK;
try {
CWsbStringPtr serviceName;
CWsbStringPtr accountName;
if( pszServiceName ) *pszServiceName = 0;
if( pszAccountName ) *pszAccountName = 0;
//
// Find the service in the registry
//
CWsbStringPtr regPath = L"SOFTWARE\\Classes\\AppID\\";
regPath.Append( CWsbStringPtr( guidApp ) );
//
// Get the name of the service
//
if( pszServiceName ) {
serviceName.Realloc( 255 );
WsbAffirmHr( WsbGetRegistryValueString( 0, regPath, L"LocalService", serviceName, 255, 0 ) );
}
//
// Get the account for it to run under
//
if( pszAccountName ) {
accountName.Realloc( 255 );
hr = WsbGetRegistryValueString( 0, regPath, L"RunAs", accountName, 255, 0 ) ;
if( HRESULT_FROM_WIN32( ERROR_FILE_NOT_FOUND ) == hr ) {
WsbGetLocalSystemName( accountName );
hr = S_OK;
} else {
WsbAffirmHr( hr );
}
}
//
// Wait till end to do final assignments in case error
// occurs, in which case smart pointers automatically
// cleanup for us, and OUT params are not set.
//
if( pszServiceName ) serviceName.GiveTo( pszServiceName );
if( pszAccountName ) accountName.GiveTo( pszAccountName );
} WsbCatch( hr );
return( hr );
}
HRESULT
WsbGetComputerName(
OUT CWsbStringPtr & String
)
/*++
Routine Description:
This routine retrieves the name of the computer into a CWsbStringPtr.
Arguments:
String - String object to fill in with the name.
Return Value:
S_OK - Success
E_* - Problem occured, error passed down.
--*/
{
HRESULT hr = S_OK;
try {
//
// Force allocation of enough characters and call Win32
//
DWORD cbName = MAX_COMPUTERNAME_LENGTH + 1;
WsbAffirmHr( String.Realloc( cbName ) );
WsbAffirmStatus( GetComputerName( String, &cbName ) );
} WsbCatch( hr );
return( hr );
}
HRESULT
WsbGetLocalSystemName(
OUT CWsbStringPtr & String
)
/*++
Routine Description:
This routine retrieves the name of the account for LocalSystem.
Arguments:
String - String object to fill in with the name.
Return Value:
S_OK - Success
E_* - Problem occured, error passed down.
--*/
{
HRESULT hr = S_OK;
try {
//
// For now, hardcode. May need to lookup name of
// SECURITY_LOCAL_SYSTEM_RID
//
String = L"LocalSystem";
} WsbCatch( hr );
return( hr );
}